Learn HVAC by Diagram - (How Air Handling Unit Works)

Preface

This illustration represents an Air Handling Unit (AHU), a critical component of modern HVAC systems responsible for conditioning and distributing air within buildings. It demonstrates how outdoor and return air are mixed, filtered, heated, or cooled before being supplied to occupied spaces, ensuring thermal comfort, air quality, and energy efficiency. The labeled components—such as the preheat coil, heating coil, cooling coil, and filters—work together to maintain ideal indoor conditions in various environments, from residential spaces to large industrial facilities.

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